[Novalug] Configuring SATA drives

[Jay Hart]

I tried to find the manual for this drive, so I could read about the jumper
positions. Very little info on WD website.

I think I'm going to use it as-is.

Jay

> Jay,<br><br>You probably don't need the jumper in either position. Spread
> Spectrum Clocking is to reduce EMI interference (it varies the frequency of
> the bus over time to keep it from resonating with other components and
> creating greater interference). Read more here:
> http://en.wikipedia.org/wiki/Spread_spectrum<br><br>And the presence of the
> 150 MBps jumper probably means that it's a SATA2 drive, which is capable of
> 300 MBps.&nbsp; That's a speed brake ;)<br><br>-- Mike<br><br><br>On
> 13.07.2007 21:33 Jay Hart <jhart at kevla.org>
> wrote<br></jhart at kevla.org><p></p><blockquote><br>Ok, just bought two
> identical SATA drives for testing the RAID stuff for FreeNAS.
> <br>
> <br>They are WD Cavier SE model 1600JS drives.
> <br>
> <br>I have the "option" of jumpering the drives for either SSC (spread
> spectrum
> <br>clocking" or SATA 150MB/s operation.
> <br>
> <br>Never heard of the first, so for you guys (and gals) out there that know
> about
> <br>SSC, do I wnat to jumper for that option, or go for the 150 MB/s ops.
> <br>
> <br>TIA,
> <br>
> <br>Jay Hart
> <br>
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